Water-closet-flushing tank.



F. E. SHAW;

WATER CLOSET FLUSHING TANK.

APPLICATION FILED FEB-1.1915.

1 1 91 Patented Jan. 30, 1917.

mk Ea M Gwen mu FRANK E. SHAW, 0F COLUMBUS, OHIG, ASESIGNGR 61* ONE-HALF TO CECIL H. KERN, 0F COLUMBUS, OHIO.

WATER-CLOSET-FLUSHING TANK.

Application filed February 1, 1915.

To all whom it may concern:

Be it known that T, l nnnn E. Srmw, a citizen of the United States, residing at Columbus, in the county of Franklin and State of @hio, have invented a certain new and useful Improvement in l/Vater-Closet- Flushing Tanks, of which the following is a specification.

The object of this invention is to provide an improved flushing tank, the mechanism of which is not so liable to get out of order as that of the tanks at present in common use.

In my invention siphonic action supplemented by a jetting action is utilized as the discharging means.

The invention is embodied in the example illustrated in the accompanying drawing, set forth in the following description and then claimed.

In the said drawing-Figure 1 is a vertical longitudinal section through the tank illustrating the tank charged with flushing Water. Fig. 2 is a plan view of the left hand end of the tank with the cover removed. Fig. 3 is a front elevation of the fraction of tank shown in Fig. 2. Fig. 4 is a sectional view of the valve for controlling the siphoning or flushing operation.

In the views 5 designates the tank or reservoir for the flushing water, said tank having a cover 5 as usual.

Water under ordinary city pressure is supplied to the tank through a pipe 6, said pipe having a faucet 7 provided with an ordinary reciprocating valve (not shown) in the casing 8. The valve of the faucet 7 has an exposed stem 8 with which is con nected the arm 9 of a float 10. The arm 9 is composed of two parts connected by a clamping thumb screw 9. A loop extension 11 on the casing 8 forms a double fulcrum for the arm 9, one fulcrum serving when the float falls to cause the opening of the valve to discharge water into the tank, and the other serving to hold the valve closed or as usual in cut off valves in flushing tanks. Tn the proper elevated position of the float the valve of the faucet 7 is closed but the level to which the water in the tank shall rise can be controlled by adjusting the thumb screw 9 as can be easily understood.

The water supply pipe has an extension 12 terminating in a jetting nozzle 13 directed to discharge upward. Interposed in Specification of Letters latent.

Patented Jan. 36, 191%.

Serial No. 5,402.

the extension 12 is a valve casing let containing a swinging gravity valve 15 provided with a suitable packing. This valve is actuated to be opened by a finger 16 on a rock shaft 1? that extends through the forward wall of the tank where it is provided with finger piece 18. The lingers 16 and 18 normally hang in depressed position by gravity. The upper wall of the valve case 1% is furnished with a deflector 1 F to give an upward direction to the water in front of the valve when it flows through the casing so that upon a slight opening of the valve by the finger 16 the pressure of this upward direction of flow acts on the lower side of the valve to hold it in open position as suggested by broken lines illustrated in Fig. t. The valve casing l l can be provided with an opening having a plug 19 to permit the cleaning or grinding of the valve seatwhen necessary.

20 designates the siphon for discharging the flushing water. The lower end of the shorter leg of this siphon is arranged over the end of the jetting nozzle 13 while the longer leg is suitably connected to discharge into the closet bowl (not shown).

In practice the float 10 is adjusted so that the level of the water may rise in the tank and short leg of the siphon to near the bend at the top of the siphon. Tn this case great force is not required to push the column of water around the bend and therefore to set up a fiow through the longer leg by atmospheric pressure. Let it be assumed that the tank is supplied with water and that the parts are in the position shown in Fig. l, the valve of the faucet being closed. To start the operation of the siphon it is only necessary to release the pressure of the city water or other source through the pipe extension 12, this being accomplished by simply pressing to the left the finger piece 18 and thereby operating the finger 16 to unseat the valve 15. The thus unseated valve 15 is maintained in opened position by the flow thus initiated in the pipe extension 12 as before explained. The discharge of the jetting nozzle 13 initially forces the column of water over the bend at the top of the siphon tube and thereafter the flow through the siphon continues, supplemented and accelerated by the discharge of the jetting nozzle, until the level of the water in the tank has so far fallen as to break the flow through the siphon and permit the float arm to open the faucet 7. The supplementing of the siphonic action With the jetting action renders the flow of flushing Water sufficiently strong to permit the use of my invention in low tank constructions. Upon the opening of the faucet 7 the tank is recharged with Water until the float arm closes the valve of said faucet. The opening of the faucet 7 relieves the pressure on the gravity valve 15 and that valve falls on its seat. When the valve of the faucet 7 has closed the valve 15 is held closed by the restored full pressure in the extension l2runtil again operated by the finger 17.

The form of the parts can be changed Without departing from the scope of the invention as claimed.

What I claim is:

1. In a Water closet flushing tank having a siphon discharge, the combination of a Water supply pipe having a tank filling branch, a valve therein and means whereby the valve may be opened and closed With the difference in the level of the Water in the tank, said first named supply pipe also haveach of said outlets, the valve for the outlet 1 of the jetting device being operable at will, the valve for said jetting device being automatically maintained in open position by the flow of jetting water until the tank charging outlet is opened, and means operated by a lowering of the level of the water in the tank for opening the tank charging outlet upon the discharge of the tank.

FRANK E. Sl'LUV. Witnesses BENJAMIN FINCKEL, A. M. KEARNEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

